forwarding on MST instance whilst in loop inconsistency on the port

[andy!doesnt!like!uucp]

Hi dudes

today i've met something really wierd on C6.5K (WS-C6506-E + WS-SUP720-3B + WS-X6708-10GE + 12.2(33)SXI3).

in substance:

#sho spanning-tree interface po4

Mst Instance Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
MST0 Desg FWD 1000 128.1667 P2p Bound(PVST)
MST1 Desg FWD 1000 128.1667 P2p Bound(PVST) *LOOP_Inc

Isnt it funny? i made diagnosis from number of perspectives & identified no deviations except above one.

no bug-search helped as well. any idea?

[andy!doesnt!like!uucp]

anyway disable&reenable loopgurd cleared from error. tnx. only Q is what r conditions for this wierd state FWD&LOOP_INC :0)

[saxoflo07]

Did you use VTP Pruding ?

[andy!doesnt!like!uucp]

pruning is enabled on C6.5K side with VTP disabled on the remote side.